How does making a list help you find common factors
2 answers:
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Answer:
The equation showing this situation is
Step-by-step explanation:
Given : A quadratic equation of the form has one real number solution.
To find : Which could be the equation?
Solution :
A quadratic equation in form has a solution
called a quadratic formula in which the roots are one real,two real or no real is determine by discriminant factor.
Discriminant is defined as to determine the number of roots in a quadratic equitation has following rules :
1) If there are two real roots.
2) If there are one real roots.
3) If there are no real roots.
According to question,
A quadratic equation of the form has one real number solution.
So, The equation showing this situation is
Answer:
The volume of the solid is
Step-by-step explanation:
In this case, the washer method seems to be easier and thus, it is the one I will use.
Since the rotation is around the y-axis we need to change de dependency of our variables to have . Thus, our functions with
as independent variable are:
For the washer method, we need to find the area function, which is given by:
By taking a look at the plot I attached, one can easily see that for a rotation around the y-axis the outer radius is given by the function and the inner one by
. Thus, the area function is:
Now we just need to integrate. The integration limits are easy to find by just solving the equation , which has two solutions
and
. These are then, our integration limits.
